Inventor · disambiguated record
Hajime Katayama
Also filed as: KATAYAMA HAJIME
34 granted patents·12 pending applications·439 citations·filing 1974–2024
97Inventor score
Top patents by PatentIndex Score
46 records- 0196US4256400ACopying machine provided with means for selectively setting original base lineCANON KK·Filed 1978·Granted Mar 17, 1981·54 cites·13 claims
- 0295US3987756ADeveloping deviceCANON KK·Filed 1975·Granted Oct 26, 1976·48 cites·12 claims
- 0393US4139300ACopying apparatus with variable stop positionCANON KK·Filed 1975·Granted Feb 13, 1979·33 cites·40 claims
- 0491US4401385AImage forming apparatus incorporating therein ozone filtering mechanismCANON KK·Filed 1982·Granted Aug 30, 1983·38 cites·6 claims
- 0587US4032137AFeed cassette deviceCANON KK·Filed 1975·Granted Jun 28, 1977·31 cites·8 claims
- 0685US12138998B2Vehicle tailgateYACHIYO IND CO LTD·Filed 2022·Granted Nov 12, 2024·2 cites·8 claims
- 0784US12459826B2Hollow silica particles and method for manufacturing hollow silica particlesAGC INC·Filed 2022·Granted Nov 4, 2025·0 cites·20 claims
- 0884US7360826B2Sheet member with frame bodyNIPPON SHEET GLASS CO LTD·Filed 2006·Granted Apr 22, 2008·14 cites·20 claims
- 0984US4007986ACopying apparatusCANON KK·Filed 1974·Granted Feb 15, 1977·19 cites·7 claims
- 1083US8685533B2Fluororesin filmKATAYAMA HAJIME·Filed 2010·Granted Apr 1, 2014·3 cites·14 claims
- 1182US4106870AColor electrophotographic method and apparatusCANON KK·Filed 1974·Granted Aug 15, 1978·17 cites·24 claims
- 1279US4521099ACopying apparatusCANON KK·Filed 1981·Granted Jun 4, 1985·18 cites·8 claims
- 1379US4095879AColor copying apparatusCANON KK·Filed 1976·Granted Jun 20, 1978·19 cites·19 claims
- 1479US2022396490A1Hollow silica particles and method for producing the sameAGC INC·Filed 2022·Application pending·0 cites
- 1578US8231170B2Vehicle roof systemKATAYAMA HAJIME·Filed 2011·Granted Jul 31, 2012·7 cites·8 claims
- 1678US4704393A1-substituted 5-fluorouracil useful for inhibiting the aggregation of plateletsTERUMO CORP·Filed 1984·Granted Nov 3, 1987·10 cites·7 claims
- 1777US8118357B2Frame structure of sunroof apparatusHOTTA KOUICHI·Filed 2010·Granted Feb 21, 2012·7 cites·4 claims
- 1877US7442356B2Process for producing inorganic spheresASAHI GLASS CO LTD·Filed 2005·Granted Oct 28, 2008·6 cites·19 claims
- 1976US2024308858A1Hollow silica particles and method for producing sameAGC INC·Filed 2024·Application pending·0 cites
- 2075US2025107977A1Silica powder for cosmetic preparations, and cosmetic preparationAGC INC·Filed 2024·Application pending·0 cites
- 2175US2025100890A1Method for producing spherical silica powderAGC INC·Filed 2024·Application pending·0 cites
- 2275US2024209210A1Spherical silica powder and method for producing spherical silica powderAGC INC·Filed 2024·Application pending·0 cites
- 2373US11667176B2Vehicle tailgateYACHIYO IND CO LTD·Filed 2021·Granted Jun 6, 2023·1 cites·8 claims
- 2473US7628448B2Drain structure of roof panelHONDA MOTOR CO LTD·Filed 2008·Granted Dec 8, 2009·8 cites·5 claims
- 2572US3997977ADeveloping liquid recovery device in a copying machineCANON KK·Filed 1975·Granted Dec 21, 1976·17 cites·12 claims
- 2672US2024122818A1Light scattering silica particles and method for producing light scattering silica particlesAGC INC·Filed 2023·Application pending·0 cites
- 2771US4261660ASurface potentiometer for use in an electrostatic copierCANON KK·Filed 1978·Granted Apr 14, 1981·19 cites·14 claims
- 2871US4089600ACorona discharge device for electrophotographic copying machineCANON KK·Filed 1976·Granted May 16, 1978·13 cites·3 claims
- 2970US8246110B2Deflector mechanism for sunroof apparatusKATAYAMA HAJIME·Filed 2011·Granted Aug 21, 2012·4 cites·4 claims
- 3070US3972612ADuplex copying apparatusCANON KK·Filed 1975·Granted Aug 3, 1976·13 cites·9 claims
- 3168US8191962B2Deflector of sliding roof systemKATAYAMA HAJIME·Filed 2010·Granted Jun 5, 2012·3 cites·2 claims
- 3265US8240752B2Holding structure of guide pipe of sunroof apparatusKATAYAMA HAJIME·Filed 2011·Granted Aug 14, 2012·3 cites·8 claims
- 3365US3999852ACopying apparatus capable of both-side printingCANON KK·Filed 1975·Granted Dec 28, 1976·19 cites·5 claims
- 3462US2023302431A1AdsorbentAGC INC·Filed 2023·Application pending·0 cites
- 3561US11479673B2Method for producing lanthanum hexaboride-containing composite particles and method for producing formed productAGC INC·Filed 2019·Granted Oct 25, 2022·0 cites·16 claims
- 3661US7022300B2Process for producing inorganic spheresASAHI GLASS CO LTD·Filed 2003·Granted Apr 4, 2006·8 cites·19 claims
- 3760US8240751B2Vehicle roof systemKATAYAMA HAJIME·Filed 2011·Granted Aug 14, 2012·2 cites·12 claims
- 3857US2008267853A1Process for producing inorganic spheresASAHI GLASS CO LTD·Filed 2008·Application pending·0 cites
- 3956US8282991B2Process for producing hydrophobized silicon oxide-coated metal oxide particles comprising primary and secondary hydrophobizing stepsKATAYAMA HAJIME·Filed 2009·Granted Oct 9, 2012·1 cites·18 claims
- 4052US8603412B2Microchannel structure, and methods for producing emulsion and solid spherical particlesKATAYAMA HAJIME·Filed 2012·Granted Dec 10, 2013·0 cites·11 claims
- 4151US9718333B2Water discharge structure for sunroof deviceYACHIYO IND CO LTD·Filed 2015·Granted Aug 1, 2017·1 cites·6 claims
- 4251US7537746B2Process and apparatus for producing inorganic spheresASAHI GLASS CO LTD·Filed 2004·Granted May 26, 2009·1 cites·18 claims
- 4340US2011187159A1Vehicle roof systemYACHIYO IND CO LTD·Filed 2011·Application pending·0 cites
- 4440US2011187161A1Vehicle roof systemYACHIYO IND CO LTD·Filed 2011·Application pending·0 cites
- 4535US2002119319A1Fluorine-containing copolymer, composition and laminateASAHI GLASS CO LTD·Filed 2002·Application pending·0 cites
- 4634US2013285418A1Sunroof apparatusYACHIYO IND CO LTD·Filed 2013·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →